Fix Cost.kind values: SUPPLY | DELIVERY (not BILL_AMOUNT)
The code parses and stores supply and delivery as separate Cost rows
(SUPPLY | DELIVERY); it does not derive delivery from BILL_AMOUNT - SUPPLY.
The stale BILL_AMOUNT term comes from an out-of-date Prisma schema comment.
Update wiki for v0.2.0->v0.18.3 features
Refresh Architecture (data model: NgLogin, WeatherDaily, Cost kind
SUPPLY|BILL_AMOUNT, account lat/long; new modules + API routes), correct the
stale Testing/CI note (CI now runs the vitest gate + migration-safety), and
expand Releases-and-CI with the test/migration-safety gates and the fail-closed
pre-upgrade backup. Add feature pages: Accounts-and-Login, Notifications,
Weather-and-Degree-Days, Backups-and-Migration-Safety, Range-and-Customization;
link them from Home and the sidebar. Update How-the-Scraper-Works (interactive
MFA/OTP, multi-account, Open-Meteo primary), Development-Setup env table,
Contributing security posture, and Data-Accuracy (analytics sit on top of the
PDF-sourced numbers; cost still from currentCharges).
Contributor wiki: architecture, scraper, data-accuracy requirements, testing, contributing, releases